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2023-11-07

final rule

Airworthiness Directives; Various Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Jun 22, 2023 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Helicopters

2013-23-07

final rule

Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters (Type Certificate Previously Held by Sikorsky Aircraft Corporation)

Unsafe Condition: A crack in the main rotor blade, which could result in blade separation and subsequent loss of control of the helicopter.

Effective: Dec 27, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters (Type Certificate Previously Held by Sikorsky Aircraft Corporation)

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2013-20-15 Recurring

final rule

Airworthiness Directives; Sikorsky Aircraft Corporation-Manufactured (Sikorsky) Model Helicopters (Type Certificate Currently Held by Erickson Air-Crane Incorporated)

Unsafe Condition: Crack in a flight critical component, failure of a critical part, and subsequent loss of control of the helicopter.

Effective: Dec 5, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation- Manufactured (Sikorsky) Model Helicopters (Type Certificate Currently Held by Erickson Air-Crane Incorporated)

2012-26-06

final rule

Airworthiness Directives; Sikorsky Aircraft-Manufactured Model S-64F Helicopters

Unsafe Condition: A fatigue crack in a flight critical component, which could result in component failure from static overload and subsequent loss of control of the helicopter.

Effective: Apr 16, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Sikorsky Aircraft-Manufactured Model S- 64F Helicopters

2012-23-11

final rule

Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters

Unsafe Condition: Cracking or working rivets in the left and right splice fitting (transition fitting), pylon bulkhead assembly-canted (bulkhead assembly), and pylon steel strap (strap) due to fatigue, which could l...

Effective: Jan 14, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

2011-21-12

final rule

Airworthiness Directives; Erickson Air-Crane Incorporated Model S-64F Helicopters

Unsafe Condition: Loss of a swashplate due to a fatigue crack, leading to loss of control of the main rotor system and subsequent loss of control of the helicopter.

Effective: Dec 1, 2011 Category: aircraft Compliance: Within 15 hours time-in-service (TIS) for initial visual inspection, 150 hours TIS for magnifying...

Why matched: Airworthiness Directives; Erickson Air-Crane Incorporated Model S-64F Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2010-14-12

final rule

Airworthiness Directives; Arrow Falcon Exporters, Inc. (previously Utah State University); AST, Inc. (previously Firefly Aviation Helicopter Services, and Erickson Air-Crane); Rotorcraft Development Corporation (previously Garlick Helicopters, Inc.); Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (previously Western International Aviation, Inc.); International Helicopters, Inc.; Northwest Rotorcraft, LLC (previously Precision Helicopters, LLC); Robinson Air Crane, Inc.; San Joaquin Helicopters (previously Hawkins & Powers Aviation); S.M. &T. Aircraft (previously US Helicopter Inc., UNC Helicopters, Inc., Southern Aero Corporation, and Wilco Aviation); Smith Helicopters; Southern Helicopter, Inc.; Southwest Florida Aviation International, Inc. (previously Mr. Jamie R. Hill and Southwest Florida Aviation, Inc.); Tamarack Helicopters, Inc. (previously Ranger Helicopter Services, Inc.); US Helicopter, Inc. (previously Williams Helicopter Tech., Southern Aero Corp., Oregon Helicopters and Lenair Corp); West Coast Fabrications; and Overseas Aircraft Support Inc. (previously Williams Helicopter Corporation, Scott Paper Company and Offshores Construction) Model AH-1G, AH-1S, HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model UH-1B (SW204 and SW204HP) and UH-1H (SW205) Helicopters

Unsafe Condition: This amendment adopts a new airworthiness directive (AD) for the Aeronautical Accessories, Inc. (AAI) Low Skid Landing Gear Forward Crosstube (crosstube) installed on the specified helicopters. Thi...

Effective: Jul 23, 2010 Category: aircraft

Why matched: Airworthiness Directives; Arrow Falcon Exporters, Inc. (previously Utah State University); AST, Inc. (previously Firefly Aviation Helicopter Services, and Erickson Air-Crane); Rotorcraft Development Corporation (previously Garlick Helicopters, Inc.); Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (previously Western International Aviation, Inc.); International Helicopters, Inc.; Northwest Rotorcraft, LLC (previously Precision Helicopters, LLC); Robinson Air Crane, Inc.; San Joaquin Helicopters (previously Hawkins & Powers Aviation); S.M. &T. Aircraft (previously US Helicopter Inc., UNC Helicopters, Inc., Southern Aero Corporation, and Wilco Aviation); Smith Helicopters; Southern Helicopter, Inc.; Southwest Florida Aviation International, Inc. (previously Mr. Jamie R. Hill and Southwest Florida Aviation, Inc.); Tamarack Helicopters, Inc. (previously Ranger Helicopter Services, Inc.); US Helicopter, Inc. (previously Williams Helicopter Tech., Southern Aero Corp., Oregon Helicopters and Lenair Corp); West Coast Fabrications; and Overseas Aircraft Support Inc. (previously Williams Helicopter Corporation, Scott Paper Company and Offshores Construction) Model AH-1G, AH-1S, HH- 1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model UH-1B (SW204 and SW204HP) and UH-1H (SW205) Helicopters

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

2006-19-05

final rule

Airworthiness Directives; Arrow Falcon Exporters, Inc. (Previously Utah State University); Firefly Aviation Helicopter Services (Previously Erickson Air-Crane Co.); California Department of Forestry; Garlick Helicopters, Inc.; Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (Previously Western International Aviation, Inc.); International Helicopters, Inc.; Precision Helicopters, LLC; Robinson Air Crane, Inc.; San Joaquin Helicopters (Previously Hawkins and Powers Aviation, Inc.) S.M.&T. Aircraft (Previously U.S. Helicopters, Inc., UNC Helicopter, Inc., Southern Aero Corporation, and Wilco Aviation); Smith Helicopters; Southern Helicopter, Inc.; Southwest Florida Aviation International, Inc. (Previously Jamie R. Hill and Southwest Florida Aviation); Tamarack Helicopters, Inc. (Previously Ranger Helicopter Services, Inc.); U.S. Helicopter, Inc. (Previously UNC Helicopter, Inc.); West Coast Fabrication; and Williams Helicopter Corporation (Previously Scott Paper Co.) Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model SW204, SW204HP, SW205, and SW205A-1 Helicopters

Unsafe Condition: This amendment adopts a new airworthiness directive (AD) for the specified restricted category type-certificated helicopters. The AD requires a review of the helicopter records to determine the Com...

Effective: Oct 16, 2006 Category: aircraft Compliance: before further flight

Why matched: Airworthiness Directives; Arrow Falcon Exporters, Inc. (Previously Utah State University); Firefly Aviation Helicopter Services (Previously Erickson Air-Crane Co.); California Department of Forestry; Garlick Helicopters, Inc.; Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (Previously Western International Aviation, Inc.); International Helicopters, Inc.; Precision Helicopters, LLC; Robinson Air Crane, Inc.; San Joaquin Helicopters (Previously Hawkins and Powers Aviation, Inc.) S.M.&T. Aircraft (Previously U.S. Helicopters, Inc., UNC Helicopter, Inc., Southern Aero Corporation, and Wilco Aviation); Smith Helicopters; Southern Helicopter, Inc.; Southwest Florida Aviation International, Inc. (Previously Jamie R. Hill and Southwest Florida Aviation); Tamarack Helicopters, Inc. (Previously Ranger Helicopter Services, Inc.); U.S. Helicopter, Inc. (Previously UNC Helicopter, Inc.); West Coast Fabrication; and Williams Helicopter Corporation (Previously Scott Paper Co.) Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH- 1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model SW204, SW204HP, SW205, and SW205A-1 Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

99-07-15

final rule

Airworthiness Directives; CALIFORNIA DEPARTMENT OF FORESTRY; FIREFLY AVIATION HELICOPTER SERVICES (PREVIOUSLY ERICKSON AIR-CRANE); GARLICK HELICOPTERS; HAWKINS & POWERS AVIATION, INC.; INTERNATIONAL HELICOPTERS, INC.; RANGER HELICOPTER SERVICES; ROBINSON AIRCRANE, INC.; SCOTT PAPER CO. (FORMERLY OFF SHORE); SMITH HELICOPTERS; SOUTHERN HELICOPTER, INC.; SOUTHWEST FLORIDA AVIATION; UTAH STATE UNIVERSITY; UNC HELICOPTER INC. (FORMERLY WILLIAMS HELICOPTER); US HELICOPTER, INC.; WESTERN INTERNATIONAL AVIATION, INC.; AND TAMARACK HELICOPTERS Model HH-1K, SW204, SW204HP, SW205, SW205A-1, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters

Unsafe Condition: In-flight failures of the tail rotor yoke due to static or dynamic overload from excessive bending forces, which could result in loss of the tail rotor and subsequent loss of control of the helicop...

Effective: May 3, 1999 Category: aircraft Compliance: Before further flight for immediate actions; within 180 calendar days for yoke replacement of una...

Why matched: Airworthiness Directives; CALIFORNIA DEPARTMENT OF FORESTRY; FIREFLY AVIATION HELICOPTER SERVICES (PREVIOUSLY ERICKSON AIR-CRANE); GARLICK HELICOPTERS; HAWKINS & POWERS AVIATION, INC.; INTERNATIONAL HELICOPTERS, INC.; RANGER HELICOPTER SERVICES; ROBINSON AIRCRANE, INC.; SCOTT PAPER CO. (FORMERLY OFF SHORE); SMITH HELICOPTERS; SOUTHERN HELICOPTER, INC.; SOUTHWEST FLORIDA AVIATION; UTAH STATE UNIVERSITY; UNC HELICOPTER INC. (FORMERLY WILLIAMS HELICOPTER); US HELICOPTER, INC.; WESTERN INTERNATIONAL AVIATION, INC.; AND TAMARACK HELICOPTERS Model HH-1K, SW204, SW204HP, SW205, SW205A-1, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

85-25-03

final rule

Airworthiness Directives; SIKORSKY AIRCRAFT Model S-64E Helicopters

Unsafe Condition: Cracked or corroded main rotor head torque tube inner bracket assembly, Part Number S1510-21332-0, could result in failure of the main rotor head assembly.

Effective: Dec 30, 1985 Category: aircraft Compliance: Prior to the first flight of each day after the effective date (December 30, 1985). For cracked p...

Why matched: Airworthiness Directives; SIKORSKY AIRCRAFT Model S-64E Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

85-18-01

final rule

Airworthiness Directives; SIKORSKY AIRCRAFT Model S-64E Helicopters

Unsafe Condition: The possible loss of the main rotor blade outboard spar and subsequent loss of the counterweight train.

Effective: Sep 12, 1985 Category: aircraft Compliance: Within the next 30 hours time in service after the effective date of this AD, and thereafter at i...

Why matched: Airworthiness Directives; SIKORSKY AIRCRAFT Model S-64E Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

76-06-01

final rule

Airworthiness Directives; Sikorsky Models S-61L, S-61N, S-61NM, S-61R, S-62A, S-64A, S-64E, S-64F Helicopters, Including Military CH-3C, HH-3C, CH-3E, HH-3E, and CH-54B Helicopters

Unsafe Condition: Flaking chrome plating from the pistons of Model 66WAP200 and Model 66WAN200 hydraulic pumps with specified serial numbers could lead to hydraulic system contamination and failure.

Effective: Mar 24, 1976 Category: aircraft Compliance: Before the first flight each day and within 180 calendar days after the effective date of this AD.

Why matched: Airworthiness Directives; Sikorsky Models S-61L, S-61N, S-61NM, S-61R, S-62A, S-64A, S-64E, S-64F Helicopters, Including Military CH-3C, HH-3C, CH-3E, HH-3E, and CH-54B Helicopters

75-11-11

final rule

Airworthiness Directives; Sikorsky Models S-64E and S-64F Helicopters

Unsafe Condition: Failure of the torquemeter engine to gearbox shaft and gear assembly and consequent secondary damage to the main rotor control system components.

Effective: Dec 2, 1975 Category: aircraft Compliance: prior to further flight

Why matched: Airworthiness Directives; Sikorsky Models S-64E and S-64F Helicopters

74-16-05

final rule

Airworthiness Directives; Sikorsky Models S-64A, S-64E, and S-56 Helicopters

Unsafe Condition: Fatigue failures of the main rotor head spindle lock nut, part numbers S1510-23031-0 and S1510-23031-1.

Effective: Dec 12, 1974 Category: aircraft Compliance: Before the accumulation of 750 hours time in service (for P/N S1510-23031-0) or 10,500 hours time...

Why matched: Airworthiness Directives; Sikorsky Models S-64A, S-64E, and S-56 Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system